IT
Isaac Thomas — 1930 US Census Record
Model Tree available1930 United States Federal Census · Los Angeles, California
Our Model Tree links this Isaac Thomas across the 1920, 1930 and 1940 US Censuses in Los Angeles, California (XGBoost, ~Confirmed), with identified parents Bill & George — first a son (b.~1919), then head of a 10-person household.
Age 11
b. ~1919
Male
Son
Born: Texas
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Los Angeles, California |
| Surname | Thomas |
| Given Name | Isaac |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Texas |
| Father's Birthplace | Texas |
| Mother's Birthplace | Texas |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1919 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Isaac | Age | Birth yr |
|---|---|---|---|---|
| L Thomas | Son | — | 4 | ~1926 |
| George Thomas | Son | — | 13 | ~1917 |
| Edward Thomas | Other | — | 15 | ~1915 |
| Thomas Thomas | Other | — | 25 | ~1905 |
| George Thomas | Head | — | 31 | ~1899 |
| E Thomas | Son | — | 7 | ~1923 |
| Lula Thomas | Daughter | — | 10 | ~1920 |
| Isaac Thomas | Son | — | 11 | ~1919 |
| Lula Thomas | Other | — | 27 | ~1903 |
| Lillie Thomas | Daughter | — | 2 | ~1928 |
Census Appearances
1920
Red River, …
Son, age
Red River, Texas · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Isaac |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Texas |
| Father's Birthplace | Texas |
| Mother's Birthplace | Texas |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1930
Los Angeles, …
Son, age 11
Los Angeles, California · implied b. ~1919 — 10 household members
| Surname | Thomas |
| Given Name | Isaac |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Texas |
| Father's Birthplace | Texas |
| Mother's Birthplace | Texas |
| Can Read/Write | Yes |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1940
Los-Angeles-County, California
Other, age 21
Los-Angeles-County, California · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ira |
| Relationship to Head | Son-in-law |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Texas |
| 1935 Residence (City) | Magnolia |
| 1935 Residence (County) | Columbia |
| Occupation | Waiter |
| Industry | Cafe |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1040 |
| Highest Grade | No 8 |
| 1935 Residence | Arkansas |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Isaac Thomas across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father Bill Thomas (~0.92 confidence) and father George Thomas (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Bill Thomas
b. ~1884
Source father
● Household
· direct · ~0.92
Father
George Thomas
b. ~1899
Source father
● Household
· direct · ~0.92
This person
Anchor record
Isaac Thomas
Son · 1930 · age 11 · b. ~1919 · California
★ You are viewing this record
Sibling
E Thomas
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillie Thomas
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lula Thomas
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Thomas
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
L Thomas
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Los Angeles, California
Open full size
1930 US Federal Census — Los Angeles, California
Page Contents
48 people indexed on this census page (ia:1930:californiacensus00reel143:1127)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles | 31 | Head | Laborer | Louisiana |
| 2 | Augustine | 23 | Wife-H | — | Georgia |
| 3 | Julius Smith | 25 | Boarder | Cook | Louisiana |
| 4 | Robert Smith | 19 | Brother | Trucker | Oklahoma |
| 5 | Catherine Smith | 5 | Niece | — | California |
| 6 | Alice Smith | 4 | Niece | — | California |
| 7 | Oscar Grant | 27 | Head | Laborer | Texas |
| 8 | Lula Grant | 50 | Mother | — | Texas |
| 9 | Lula Grant | 21 | Sister | — | Oklahoma |
| 10 | Edith Perry | 22 | Boarder | Student | Texas |
| 11 | Harry Grant | 1 | Son | — | California |
| 12 | George Thomas | 31 | Head | Laborer | Texas |
| 13 | Lula Thomas | 27 | Wife-H | Servant | Texas |
| 14 | George Thomas | 13 | Son | — | Texas |
| 15 | Isaac Thomas THIS PERSON | 11 | Son | — | Texas |
| 16 | Lula Thomas | 10 | Daughter | — | Texas |
| 17 | E. Thomas | 7 | Son | — | Texas |
| 18 | L. Thomas | 4 | Son | — | California |
| 19 | Lillie Thomas | 2 | Daughter | — | California |
| 20 | Edward Thomas | 15 | Nephew | — | Texas |
| 21 | Thomas Thomas | 25 | Brother | Laborer | Texas |
| 22 | James Tibbits | 65 | Head | — | Texas |
| 23 | Evelyn Tibbits | 38 | Boarder | Maid | Texas |
| 24 | George Strauss | 30 | Head | Peddler | Poland-Russia |
| 25 | Edith Strauss | 40 | Wife-H | — | Poland-Russia |
| 26 | Samuel Strauss | 7 | Son | — | California |
| 27 | James Strauss | 6 | Daughter | — | California |
| 28 | Nathan Strauss | 1 | Son | — | California |
| 29 | Lena Ginsberg | 61 | Head-H | — | Russia |
| 30 | Joseph Ginsberg | 69 | Roomer | — | Russia |
| 31 | Joseph Kassman | 53 | Head | Laborer | Russia |
| 32 | Rose Kassman | 43 | Wife-H | — | Russia |
| 33 | Alice Goldman | 44 | Roomer | — | Romania |
| 34 | Sylvia Goldman | 14 | Roomer | — | Michigan |
| 35 | Goldie Goldman | 14 | Roomer | — | Michigan |
| 36 | Isaac Lupinow | 50 | Roomer | Agent | Russia |
| 37 | John Fox | 25 | Head | Teamster | Tennessee |
| 38 | Mary Fox | 21 | Wife-H | — | Texas |
| 39 | John Fox | 1 | Grand-child | — | California |
| 40 | Martha George | 45 | Mother | Servant | Texas |
| 41 | Feldman | 75 | Roomer | — | Russia |
| 42 | Walter Brice | 44 | Head | Janitor | Texas |
| 43 | Ruth Brice | 40 | Wife-H | Chauffeur | Texas |
| 44 | Ethel Brice | 11 | Daughter | Servant | Texas |
| 45 | Ellen Brice | 10 | Daughter | — | Texas |
| 46 | George Brice | 8 | Son | — | Texas |
| 47 | Jasper Brice | 27 | Head | Carpenter | Texas |
| 48 | Isabelle Brice | 23 | Wife-H | Cook | Louisiana |
Pedigree Summary
Isaac + 5 siblings
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)